Science

Saturday, 19 September 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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lava
During a volcanic eruption, several hundred cubic meters of lava are usually ejected.
These volumes can vary, sometimes being very large, such as during the eruption of the Laki rift vol ...
Mushrooms
The fungus Ophiocordyceps unilateralis is able to take control of ants.
Fungi of the genus Cordyceps are parasitic fungi, living on animals - on insect larvae or spiders - ...
Cosmos
The next stage was the Dark Ages and the formation of large cosmic structures.
This period lasted from 370 thousand to 1 billion years after the Big Bang. During this time, matter ...
Amber
Amber possesses electrostatic properties.
It can produce static electricity when negatively charged by applying friction. Because of that, ancient Greeks named amber “elektron,” which became the basis for the word electricity.
Graphene
The Catalan Institute of Nanoscience and Nanotechnology has created a modern graphene sensor used in the treatment of epilepsy and Parkinson’s disease.
It records brain activity at frequencies below 0.1 Hz. Tests of brain activity in such ranges provid ...
Milky Way
Until 1920, most astronomers believed that the Milky Way contained all the stars in the universe.
Only observations made by Edwin Hubble made humanity realize that it is only one of many galaxies.
Moon
The density of the Moon is on average 3346,4 kg/m3.
It is therefore the second densest moon in the Solar System, second only to the moon Io.
Ganymede
The density of the moon is relatively low and amounts to 1.9 g/cm³.
Tears
Watery eyes may be a signal of dry eye syndrome.
Dry eye syndrome is caused by insufficient quantity or quality of tears, which prevents the proper lubrication of eyeballs. It causes excessive watering of the eyes, as a response to the irritation.
Earth
The Earth, like all planets in space, is doomed to destruction.
Life on the surface of our planet has been wiped out many times by great cataclysms called great ext ...